Hi Joel Have you tried to include an @ in your alignment file?according to restyp.lib (in mollib directory) it should correspond to ATP. I dont know how about the quality of the parameters are, but its a starter. And theres a starter for tweaking in top_heav.lib. If theres no ATP (or similat molecule) in you template You'll need to add some constraints to some atoms between your protein and ATP to restrict it to a position near the binding site.

Happy Modelling Esben Bjerrum

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